Functionality
Accuracy of operation
The straightener-feeders are driven by a servo motor, which ensures the highest precision in feeding. Measurement of the feed length (stroke) is performed by an encoder, which is in constant contact with the belt, thanks to a pneumatic cylinder.
Cushioned movements
The motor drive of the straightening machine has been replaced by a large brushless motor. It can be associated with digital controllers. All Coiltech straighteners are equipped as standard with a belt feed measurement sensor to ensure the same feed accuracy as the feeders themselves (± 0.05 mm). Achievable speeds range from 100 to 150 Cpm, for a max speed of 30 to 50 m/min.
Pressure roller release
Efficient pressure roller release will allow the pilots of the progressive cutting tool to work properly. In all compact units, the basic release function, is implemented by pneumatic or hydraulic control, to raise the traction rollers and set the motor torque to zero.
In the PIN option, a sharper release is provided by partially opening the top of the head by means of two servo-controlled hydraulic cylinders. For more sensitive applications, digital servo release will be adopted.
In this configuration, the head opening cylinders are mounted on an eccentric shaft driven by a servo motor. All release parameters are then programmable. Compact straighteners use most of the options offered for individual straighteners or feeders.
